upgrading from inn 2.2.1 -> 2.4.1

[Jason]

sorry to keep beating this dead horse, but im still trying to get the innxmit to feed my 
articles from the old server to the new one. and I keep getting the dreaded..

Jul 21 00:20:32 kendo innd: [ID 110972 news.error] tradspool: could not open 
/local/news/spool/articles/japan/edge/5 File exists
Jul 21 00:20:32 kendo innd: [ID 492761 news.error] SERVER cant store article: File exists
Jul 21 00:20:32 kendo innd: [ID 110972 news.error] tradspool: could not open 
/local/news/spool/articles/japan/rp/3 File exists
Jul 21 00:20:32 kendo innd: [ID 492761 news.error] SERVER cant store article: File exists
Jul 21 00:20:32 kendo innd: [ID 110972 news.error] tradspool: could not open 
/local/news/spool/articles/japan/crash/46 File exists
Jul 21 00:20:32 kendo innd: [ID 492761 news.error] SERVER cant store article: File exists

with corresponding  436 cant store article errors in the /local/news/log/news file.
I see http://www.eyrie.org/~eagle/faqs/inn.html#S4.4
and rebuild my database with the makehistory -O -x -F
and retry the innxmit again, but it fails again after a while.

Is there a better storage method I should be using besides the tradspool? 

suggestions, please.

Jason